<!DOCTYPE html>
<html>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
	<style type="text/css">
	body, html,#allmap {width: 100%;height: 100%;overflow: hidden;margin:0;font-family:"微软雅黑";}
	</style>
	<script type="text/javascript" src="https://api.map.baidu.com/api?v=2.0&ak=L3gfGpsqpWKGtYsVYrS4Wgz5"></script>
	<title>地图展示</title>
</head>
<body>
	<div id="allmap"></div>
</body>
</html>
<script type="text/javascript">
	// 百度地图API功能
	var map = new BMap.Map("allmap");    // 创建Map实例
	map.centerAndZoom(new BMap.Point(108.952, 34.223), 11);  // 初始化地图,设置中心点坐标和地图级别
	//添加地图类型控件
	map.addControl(new BMap.MapTypeControl({
		mapTypes:[
            BMAP_NORMAL_MAP,
            BMAP_HYBRID_MAP
        ]}));	  
	map.setCurrentCity('太原');          // 设置地图显示的城市 此项是必须设置的
	map.enableScrollWheelZoom(true);     //开启鼠标滚轮缩放
	var circle1 = new BMap.Circle(new BMap.Point(108.952, 34.223),1000000,{fillColor:"blue", strokeWeight: 1 ,fillOpacity: 0.3, strokeOpacity: 0.3,enableEditing:true});
	map.addOverlay(circle1);
	var circle2 = new BMap.Circle(new BMap.Point(108.952, 34.223),1500000,{fillColor:"red", strokeWeight: 1 ,fillOpacity: 0.3, strokeOpacity: 0.3,enableEditing:true});
	map.addOverlay(circle2);
	var circle3 = new BMap.Circle(new BMap.Point(108.952, 34.223),2000000,{fillColor:"green", strokeWeight: 1 ,fillOpacity: 0.3, strokeOpacity: 0.3,enableEditing:true});
	map.addOverlay(circle3);
</script>